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  • Irish Chronicles Document Links Between Volcanoes and Weather
    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong corr...Read more

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    Irish Chronicles Document Links Between Volcanoes and Weather

    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong correlation between the occurrence of volcanic eruptions and extreme cold weather in Ireland over a 1200 year period. Data analyzed in this study cover the period from 431 to 1649, during which time up to 48 volcanic eruptions are identified in Greenland ice core records through deposition of volcanic sulfate in annual layers of ice. You can find the study (open access), published on 6 June 2013 in IOP Publishing's journal Environmental Research Letters, at http://iopscience.iop.org/1748-9326/8/2/024035/article. Find out more about how volcanoes can influence climate.
  • EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US
    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, acco...Read more

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    EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US

    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, according to the National Weather Service in Norman Oklahoma. The tornado, which remained on the ground for 40 minutes and reached 2.6 miles across (4.2 km), took the lives of 18 people including storm chasers Tim Samaras, Paul Samaras and Carl Young. For more information on the tornado, visit http://ow.ly/i/2hfDG.
  • Atmospheric CO2 Level Tops 400 ppm
    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm rep...Read more

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    Atmospheric CO2 Level Tops 400 ppm

    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm repeatedly. Daily levels of CO2 can vary due to weather, and there are seasonal trends as well. The level of atmospheric greenhouse gases continues to increase, now over 120 ppm since the Industrial Revolution began. For more on the Keeling Curve, see http://keelingcurve.ucsd.edu/. Find out more about greenhouse gases and warming.
Dr. Thompson received her PhD from Bryn Mawr, her Masters from Princeton, and a Bachelors of Science from Swarthmore.

Anne Thompson

I'm a scientist who specializes in tropospheric ozone (the ozone we consider to be pollution). In particular I work on experimental campaigns where balloons are launched with small devices attached to measure ozone from the ground up to 30km. These ozonesondes give us a very detailed look at ozone in the atmosphere. Since the late 90's I've been the principal investigator of the Southern Hemisphere Additional Ozonesonde Network, or SHADOZ for short. My primary responsibilities on this project involve coordinating the weekly launches of ozonesondes at many locations throughout the southern hemisphere. By combining all these measurements together, we can get a very good idea of general trends in tropospheric ozone throughout the entire globe.

Although I am a chemist by trade, my PhD was actually in physical chemistry. I had no idea when I began school that I'd be studying ozone in the atmosphere. The work I do now is a long way away from the days and nights spent titrating chemicals in graduate school. Launching balloons is certainly more fun, but I'm very glad for the strong chemistry background I obtained in school.

In addition to chemistry, I love traveling, which is one of my favorite perks about this job. I've launched ozonesondes in Africa, on cruises in the Atlantic, and visited many other exotic tropical locations where our balloons are launched.

Visit my research page (http://www.meteo.psu.edu/~jstone) at Penn State, to learn more about my research, and many of the wonderful folks I work with.

Last modified February 20, 2006

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